Backlight module
A backlight module. The backlight module comprises a housing, a light source disposed on the housing, a diffuser positioned over the light source and a spacer disposed between the housing and the diffuser to maintain a distance therebetween. The spacer comprises a supporting portion to support the diffuser to maintain the separation and a base connected to the supporting portion and fixed on the housing. The base comprises a hook engaging the housing and a connecting portion connecting the supporting portion and the hook. A reflective layer is formed on the supporting portion to reflect the light from the light source.
1. A backlight module, comprising:
a housing having at least one first locating portion;
a flat light source disposed on the housing;
a diffuser positioned over the flat light source; and
a spacer disposed between the housing and the diffuser to maintain a distance therebetween and comprising a supporting portion to support the diffuser and a base connected to the supporting portion, extending through the flat light source and fixed on the housing;
wherein the supporting portion has a reflective layer thereon to reflect the light from the flat light source and a first supporting element contacting the diffuser and extending in a first direction parallel to the diffuser.
2. The backlight module as claimed in claim 1 , wherein the base comprises a latching element engaging the housing and a connecting portion connecting the supporting portion and the latching element.
3. The backlight module as claimed in claim 1 , wherein the first supporting element further has a contacting portion contacting the diffuser and at least one lateral surface inclined toward the diffuser at a predetermined angle; and the reflecting layer is formed on the lateral surface.
4. The backlight module as claimed in claim 3 , wherein the first supporting element has two lateral surfaces conjugated at an angle of 20° to 60°.
5. The backlight module as claimed in claim 3 , wherein the supporting portion further has a second supporting element having the same structure as the first supporting element but extending in a second direction parallel to the diffuser and different from the first direction.
6. The backlight module as claimed in claim 2 , wherein the first locating portion comprises a locating hole receiving the connecting portion.
7. The backlight module as claimed in claim 2 , wherein the first locating portion comprises a locating groove receiving the connecting portion.
8. The backlight module as claimed in claim 2 , wherein the flat light source is a flat light.
9. The backlight module as claimed in claim 8 , wherein the flat light source has at least one second locating portion corresponding to the first locating portion.
10. The backlight module as claimed in claim 9 , wherein the supporting portion has a first supporting element contacting the diffuser and extending in a first direction parallel to the diffuser.
11. The backlight module as claimed in claim 10 , wherein the first supporting element further has a contacting portion contacting the diffuser and at least one lateral surface inclined toward the diffuser at a predetermined angle; and the reflecting layer is formed on the lateral surface.
12. The backlight module as claimed in claim 11 , wherein the first supporting element has two lateral surfaces conjugated at an angle of 20° to 60°.
13. The backlight module as claimed in claim 11 , wherein the supporting portion further has a second supporting element having the same structure as the first supporting element but extending in a second direction parallel to the diffuser and different from the first direction.
14. The backlight module as claimed in claim 9 or 10 , wherein the first locating portion comprises a first locating hole receiving the connecting portion.
15. The backlight module as claimed in claim 14 , wherein the second locating portion comprises a second locating hole aligned with the first locating hole receiving the connecting portion.
16. The backlight module as claimed in claim 10 , wherein the first locating portion comprises a first locating groove receiving the connecting portion.
17. The backlight module as claimed in claim 16 , wherein the second locating portion comprises a second locating groove aligned with the first locating groove receiving the connecting portion.